--- product_id: 2241547 title: "Goldsource STU-1500 Step Up & Down Voltage Converter Transformer with 5V USB Output - AC 110/220 V - 1500 Watt" brand: "goldsource" price: "₱15737" currency: PHP in_stock: false reviews_count: 10 url: https://www.desertcart.ph/products/2241547-goldsource-stu-1500-step-up-and-down-voltage-converter-transformer store_origin: PH region: Philippines --- # Goldsource STU-1500 Step Up & Down Voltage Converter Transformer with 5V USB Output - AC 110/220 V - 1500 Watt **Brand:** goldsource **Price:** ₱15737 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Goldsource STU-1500 Step Up & Down Voltage Converter Transformer with 5V USB Output - AC 110/220 V - 1500 Watt by goldsource - **How much does it cost?** ₱15737 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/2241547-goldsource-stu-1500-step-up-and-down-voltage-converter-transformer) ## Best For - goldsource enthusiasts ## Why This Product - Trusted goldsource brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Review: Everything as it should be - I've been using this for a few days and so far it works great with my stuff here in Germany. I use it for a 700 watt food dehydrator and some other small low-watt items. I'm not 100% sure about the maximum wattage you can use... I found conflicting answers when I looked into it. Some people said to go 3 times the wattage of your item, meaning I would have had to get a transformer that was at least 2100 watts, according to them. I thought this sounded a little crazy and decided that I would get a transformer that is instead twice the wattage, so I may also possibly use it for higher wattage items in the future. So far nothing has blown up and everything performs as it should. I'm very happy with it. Everything is sturdy and well built. It's of course pretty heavy to carry in a suitcase, at 18 pounds. Thanks to the good packaging it was not damaged on the way to my house or in my checked baggage. It has a U.S. plug, but it comes with a small black European (Shucko) adapter. You can use it anywhere in the world, as long as you have the proper adapter. When you turn it on it makes a funny electric buzz for half a second and then goes to complete silence. **ADDITIONAL NOTE**1/30/10 After looking into it a second time I found some information stating that your item's wattage should generally not exceed 75% of the transformer's wattage, so the maximum you should use with this transformer would be 1500 watt transformer x .75 = 1125 watt item. Some items "spike" when you turn them on like blenders, power tools, laser printers, etc., and in this case you would need to multiply your item's watts by 3 to get the right transformer size, e.g. 400 watt blender needs at least a 1200 watt transformer. This stuff can be confusing to someone who doesn't know much about electricity (like me) but I hope I helped. Review: Not the best, but does the job - I purchased this to run a 110v microwave and 110v convection oven. I only use one at a time, and the convection oven is rated at 1500 watts. Device makes a big hum, and vibrates and rattles on heavy load. The build construction is a bit flimsy and looks a bit cheap. But you get what you pay for. So far device works like a charm, despite the noise and rattle noise it is a solid performer. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003OPBX36 | | Brand | Goldsource | | Brand Name | Goldsource | | Customer Reviews | 4.1 out of 5 stars 64 Reviews | | Item Weight | 17 Pounds | | Manufacturer | Goldsource | | Minimum Frequency | 50 Hz | | Model | STU-1500 | | Part Number | STU-1500 | | Power Source | Corded Electric | | Specification Met | UL | | UPC | 615564715231 615564715651 | ## Images ![Goldsource STU-1500 Step Up & Down Voltage Converter Transformer with 5V USB Output - AC 110/220 V - 1500 Watt - Image 1](https://m.media-amazon.com/images/I/51A2Q8WK7uL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Everything as it should be *by M***A on January 28, 2010* I've been using this for a few days and so far it works great with my stuff here in Germany. I use it for a 700 watt food dehydrator and some other small low-watt items. I'm not 100% sure about the maximum wattage you can use... I found conflicting answers when I looked into it. Some people said to go 3 times the wattage of your item, meaning I would have had to get a transformer that was at least 2100 watts, according to them. I thought this sounded a little crazy and decided that I would get a transformer that is instead twice the wattage, so I may also possibly use it for higher wattage items in the future. So far nothing has blown up and everything performs as it should. I'm very happy with it. Everything is sturdy and well built. It's of course pretty heavy to carry in a suitcase, at 18 pounds. Thanks to the good packaging it was not damaged on the way to my house or in my checked baggage. It has a U.S. plug, but it comes with a small black European (Shucko) adapter. You can use it anywhere in the world, as long as you have the proper adapter. When you turn it on it makes a funny electric buzz for half a second and then goes to complete silence. **ADDITIONAL NOTE**1/30/10 After looking into it a second time I found some information stating that your item's wattage should generally not exceed 75% of the transformer's wattage, so the maximum you should use with this transformer would be 1500 watt transformer x .75 = 1125 watt item. Some items "spike" when you turn them on like blenders, power tools, laser printers, etc., and in this case you would need to multiply your item's watts by 3 to get the right transformer size, e.g. 400 watt blender needs at least a 1200 watt transformer. This stuff can be confusing to someone who doesn't know much about electricity (like me) but I hope I helped. ### ⭐⭐⭐ Not the best, but does the job *by J***N on March 16, 2011* I purchased this to run a 110v microwave and 110v convection oven. I only use one at a time, and the convection oven is rated at 1500 watts. Device makes a big hum, and vibrates and rattles on heavy load. The build construction is a bit flimsy and looks a bit cheap. But you get what you pay for. So far device works like a charm, despite the noise and rattle noise it is a solid performer. ### ⭐ Wasting of money -- didn't work for me. *by H***O on July 21, 2010* I lived in US for 12 years. When I decided to move back to Brazil, I purchased two of these transformers in order to continue using some appliances I didn't want to get rid of. Here in my city we have a 220v power supply, and my appliances are 110v (US power). Well... here is what happened: What didn't work: 1. Floor wiper (works with a resistance of 1000w)... the power supplied was not enough to heat the water and produce steam. 2. Blender... My ultra-powerful blender (400w) works now as a toy blender... useless... 3. Coffee maker... will take forever and most of the case we just give up 4. Juice Man (a juice maker machine) -- is now working too slow that can't process anything 5. My power drill (Black & Decker) - I had to purchase a new one already - the 110v was way weak. What worked: 1. TV 2. Celular charger 3. Wireless Phone 4. A Computer Scanner I would not need a 10pouds device to power up these equipment anywys. I have a voltimeter, and measured the outcoming, indeed it is 110v that is coming out, I believe the transformers are not supplying enough amperage. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/2241547-goldsource-stu-1500-step-up-and-down-voltage-converter-transformer](https://www.desertcart.ph/products/2241547-goldsource-stu-1500-step-up-and-down-voltage-converter-transformer) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-06-18*